Light therapy device



FIG. 1 is a front top perspective view of a light therapy device, showing my new design;

FIG. 2 is a rear bottom perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a right side elevation thereof

FIG. 6 is a left side elevation view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The dotted lines show portions of the light therapy device that form no part of the claimed design. 

CLAIM The ornamental design for a light therapy device, as shown and described. 